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JMA’s GSICS and SCOPE-CM Activities (CGMS-41-JMA-WP-04)

JMA’s GSICS and SCOPE-CM Activities (CGMS-41-JMA-WP-04). JMA / Meteorological Satellite Center. Contents. Development of the MTSAT Calibration system on GSICS Infrared Inter-calibration Visible Vicarious Calibration Contribution to SCOPE-CM Reprocess and Archive ECV Data at JMA

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JMA’s GSICS and SCOPE-CM Activities (CGMS-41-JMA-WP-04)

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  1. JMA’s GSICS and SCOPE-CM Activities(CGMS-41-JMA-WP-04) JMA / Meteorological Satellite Center CGMS-41, Jul. 08-12, 2013, Tsukuba, Japan

  2. Contents • Development of the MTSAT Calibration system on GSICS • Infrared Inter-calibration • Visible Vicarious Calibration • Contribution to SCOPE-CM • Reprocess and Archive ECV Data at JMA • (Response to Recommendation 40.17) CGMS-41, Jul. 08-12, 2013, Tsukuba, Japan

  3. Development of the MTSAT Calibration system on GSICS1) Infrared Inter-calibration • Current status of MTSAT-1R/-2 IR GSICS correction • Demonstration phase, started in July 2010 • Reference sensor: Metop-A/IASI and Aqua/AIRS • Toward the implements to Pre-Operational phase • Additions and modifications to the netCDF conventions, Combine of RAC (Re-Analysis Correction) files • To meet the requirement of bias plotting tool, already finished • Uncertainty evaluation • ongoing, will be finished soon CGMS-41, Jul. 08-12, 2013, Tsukuba, Japan

  4. Development of the MTSAT Calibration system on GSICS2) Visible Vicarious Calibration • Method: Comparison of observed and simulated radiance for some targets • Target: Wide range of TBB in order to obtain reliable regression line • Cloud-free ocean, Cloud-free land, Liquid water cloud, DCC • Radiative transfer calculation: • RSTAR (Nakajima and Tanaka [1986,1988]) • Input data: Independent from GEO data • JMA Re-Analysis atmos. profiles, MODIS L1B, BRDF, Aura/OMI total column ozone, … Result of MTSAT-2 in Feb. 2011 Simulated reflectivity Observed reflectivity This work have been done as part of a research program conducted in collaboration with the University of Tokyo, the visible channel calibrations of GMS and MTSAT satellites. CGMS-41, Jul. 08-12, 2013, Tsukuba, Japan

  5. 2) Visible Vicarious Calibration GMS-5 re-calibration during pre-MODIS era • Background • Calibration of past satellites data is required for climatological use • GMS-5: JMA’s geostationary satellite (June 1995 to May 2003) • Problem • Developed calibration technique can’t be directly applied before 2000 due to a lack of MODIS data • Solution: Use constant/climatological value for optical parameters w/o MODIS, w/ climatological aerosol w/ MODIS y = 1.241 x – 0.0082 y = 1.0885 x – 0.0039 • Preliminary results • Similar tendency • Difference of slope magnitude, some spikes • Need of further investigation Sep. 2000 Detector-2 Sep. 2000 Detector-2 Simulated reflectivity Simulated reflectivity DCC Cloud Land Sea DCC Sea Observed reflectivity Observed reflectivity CGMS-41, Jul. 08-12, 2013, Tsukuba, Japan

  6. Contribution to SCOPE-CM • Initial activities of SCOPE-CM which JMA has contributed: • Atmospheric Motion Vector (AMV) • Clear Sky Radiance (CSR) • Surface albedo • Phase 2 project starting in January 2014 • JMA will lead one project and participates in three others SCOPE-CM Phase 2 projects with JMA involvement CGMS-41, Jul. 08-12, 2013, Tsukuba, Japan

  7. Reprocess and Archive ECV Data at JMA (Response to Recommendation 40.17) • ECV data created in SCOPE-CM Phase 1: archived at JMA • AMV and CSR • Assimilated in the Japanese 55-year Reanalysis Project (JRA-55) • They have also been provided to the ECMWF reanalysis group in 2012 • The current status of reprocessing is detailed at http://mscweb.kishou.go.jp/product/reprocess/. ECV data created in SCOPE-CM Phase 1 CGMS-41, Jul. 08-12, 2013, Tsukuba, Japan

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